X-ray machine



C. MYER )(HAY MACHINE.

mmm/mow man mm2. 19m

2 SHhETS-SHEET 2.

mmm

mm mm 21'; fr?! @Imm- S may renown:

Be it known that I, 'CHARLES Fujian a cli',- izen of the Unie States,resid ig in the si New vf'oif. boough of y' emiiy efimi; and Siete iheike inveizied vermin new ed 'e brevemente in --ey Meieliii'ieey 0 thefeilewing is a full, deer? deim ,tion ieiaies E e genere! i'jfpe shawn.in "l i iiaed May i6, 2.911? te Efe. H pji/ designezed in this refdistinct ebgees, einen@ them being the 126Mo Wing :`V-

imp'm'e the foi' nl seem?" 'ed by the 315 n i ifdef niek ehe epmki fiomieee comme seeo's co the Contact brushes esse- Hi To impreve the n1mriting v for he cmiseeox's in order te prevent the im 3 my tuba @if anycurens except he f.- eaiy hig'b-ijensimi cuz/'Fente represen L. by thepeaks die eine Waves; thus pret-eeh ing the elif-ay @be end proiengizigche i''e 2@ rendei. iie inivua mme se 5- mrs each adjuemise in length,in ei'dm The veiietione may be mede in ne duraion a the emperege of theenfrente upea die "3f-my tube.

V. To @euse che breaking of he eeeonay circuit vt0 be positive anduniform, thus im proving the action of the Lrey tube,

"im, Tu iiiipiove the geneizd eiicienag.' of the reetifyng disk by s@forming* certain paiis Caried thereby es "no elimiiine e munae practicaltroubles.

For 4the Sake o' cencieenese E will desi-vibe only e siiigfe eviceembodying my inveniommi being understood. however, tha lie structurehere disclosed is mere'y wypiee.

Reifeienee is made ze he accompanying drawing farming e part of @hisspeificetien A 3251159 3 is 'fragili-'enemy flent. eevation 'hemeehzmiem shown in Figure 2. A Figui@ il is e eee''iou on @Ehe line efidg-ure 3, ookixgg in the direction indicated by the ei'rinfre. i

Figufe 5 is, a- Seeiion flushing' in by the miows. Figure G 'is adiagram indemiilgf giep'xc symbols iii@ form of Jdie eluei'i/ geneieedin the Seeundmy Wiiling of the transformez.

igiw is e diagram izi'eziing in fis -.z jie. ferm ei he Cuiien if Simplyrei-1;- 'ied Wit-heut :my part of the current being; Lesse the defiedlinee in this View indi 4F ff the pori mi he Qiui'ent which is ilei'eet'j of the lengthy efmec sectors hezeto'fm'e oyeal .2"1 ure 9 xs adiagram indicating the 'form "terreni es eeificd, l` my impreveifi ie i.ying disk with i's mpioved sectors and ciiirieeiiens, the shaded areasrepresenting fue euppiessed portions of the curreni and he interveninglu'xshuded porione nepi-eand also slightly curved. This is due to thedragging action of the spark, in the constructions heretofore employed.Thus, by using shorter sectors and doubling the number thereof I reduceby a little more than one-halt the value of the current passing throughthe X-ray tube, and yet retain the maximum potential. l simply discardthe ascending and descending parts of the sine curve.

rlhe currents thus produced by my machine are excellent for X-ray Work,therapy and tluoroscopy.

By making the contact sectors sufficiently short the amperage may bereduced to any desired minimum While maintaining the original or maximumpotential.

i also adjust the lengths of the individual contact sectors7 so that theresults obtained.

can be greatly improved.

it will be noted that as .shown in Figure 2, at 34 and 34h, the sharppoints 34 ot the contact sectors are spaced laterally from the plane ofthe disk. 0n this account, any sparking which takes place from thecontact sectors to the brushes must follow paths which are strictlythrough the air, somewhat.

' after the manner oi' miniature light-ning ilashes. That' is to say,the sparks must leap instead of following the more or less conductingsurface ofi the disk.

In this connection it may be pointed out that the surface of practicallyany solid member of insulating material, even it free ot'moisture, dustand dirt7 is a better conductor than free air. Hence, I seek to reducethe amount ot' sparking by causing the sparkinreY to take place throughtree air instead ot alongthe surface of the disk.

ln thus spacing;` the sharp points of the contact sectors away from theplane of the disln and also by using a disk the edge of which tree frommutilations, I also i1n" prove the insulating in another way, namely, bypreventing the undue formation ot' partial vacuums immediately in therear 'of the sector as the latter is carried bodily around.

l find that in thus eliminating the air disturbances l also etleet asaying in the power required to drive the machine.

l do not limit myself to the precisemechanism shown; as variations maybe made, therein without departing from the spirit o'f my invent-ion.

' l claim:-

ln a rectitying disk the combination of a stationary. brush, a revolubledisk disposed adjacent said brush, and a contact Sector carried by saiddisk and provided with' a sharp point.y said sharp point beinggspacedlaterally from the plane of said disk and separated from the body otsaid disk by an uninterrupted air space.

CHARLES MYER.

' Witnesses: I

` A. ltiU'rsoHnLLnn, FRANK Snnonsn.

